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Influence of Audit Committee Effectiveness on the Financial Reporting Quality of Listed Companies in Nigeria

Abstract

Audit committee effectiveness has become a fundamental component of corporate governance, playing a critical role in strengthening financial reporting integrity, enhancing internal control systems, improving audit oversight, and promoting corporate accountability. As an independent governance mechanism, the audit committee is responsible for overseeing the financial reporting process, monitoring internal controls, supervising the internal and external audit functions, ensuring compliance with accounting standards and regulatory requirements, and safeguarding the interests of shareholders and other stakeholders. The effectiveness of an audit committee depends on factors such as its independence, financial expertise, size, diligence, frequency of meetings, and commitment to effective oversight. In recent years, corporate financial scandals and concerns regarding earnings manipulation, accounting irregularities, and declining investor confidence have increased the importance of effective audit committees in ensuring the credibility and reliability of financial reports. In Nigeria, regulatory institutions including the Financial Reporting Council of Nigeria (FRCN), the Securities and Exchange Commission (SEC), the Nigerian Exchange Group (NGX), and the Corporate Affairs Commission (CAC) have strengthened corporate governance regulations to improve the effectiveness of audit committees among listed companies. High-quality financial reporting is essential for enhancing transparency, reducing information asymmetry, facilitating informed investment decisions, and promoting confidence in the Nigerian capital market. Despite these regulatory initiatives, concerns regarding the quality of financial reporting, weak corporate governance practices, and financial reporting irregularities persist among some listed companies. Although previous studies have examined corporate governance and audit committee characteristics, empirical evidence regarding the influence of audit committee effectiveness on the financial reporting quality of listed companies in Nigeria remains limited and inconclusive. Against this background, this study investigates the influence of audit committee effectiveness on the financial reporting quality of listed companies in Nigeria. The study is anchored on Agency Theory, Stewardship Theory, and Resource Dependence Theory. Agency Theory posits that effective audit committees reduce agency conflicts between shareholders and management by strengthening oversight, monitoring financial reporting practices, and minimizing opportunistic managerial behaviour. Stewardship Theory argues that competent and independent audit committees enhance organizational accountability and support management in achieving high-quality financial reporting through effective governance and oversight. Resource Dependence Theory explains that audit committees possessing diverse expertise, professional experience, and financial knowledge provide valuable resources that improve monitoring effectiveness, strengthen governance structures, and enhance financial reporting quality. Collectively, these theoretical perspectives provide a comprehensive framework for explaining the relationship between audit committee effectiveness and the financial reporting quality of listed companies in Nigeria. The study adopts an ex post facto research design utilizing secondary data obtained from the audited annual reports, corporate governance reports, and financial statements of companies listed on the Nigerian Exchange Group (NGX). A longitudinal panel data approach covering a ten-year period will be employed to examine the relationship between audit committee effectiveness and financial reporting quality over time. Purposive sampling will be used to select listed companies with complete and consistent corporate governance and financial reporting information throughout the study period. Audit committee effectiveness will be measured using audit committee independence, financial expertise, committee size, meeting frequency, gender diversity, and audit committee diligence, while financial reporting quality will be measured using earnings quality, accrual quality, earnings persistence, accounting conservatism, discretionary accruals, and the timeliness of financial reporting. Data analysis will involve descriptive statistics to summarize the characteristics of the study variables, correlation analysis to determine the degree of association among variables, and panel regression techniques, including Fixed Effects and Random Effects models, to estimate the influence of audit committee effectiveness on financial reporting quality. The Hausman specification test will determine the most appropriate estimation model, while diagnostic tests including multicollinearity, heteroskedasticity, autocorrelation, stationarity, cross-sectional dependence, normality, endogeneity, and model specification tests will be conducted to ensure the validity, consistency, and robustness of the empirical findings. The study anticipates that audit committee effectiveness will have a significant positive influence on the financial reporting quality of listed companies in Nigeria. Effective audit committees are expected to strengthen internal control systems, improve oversight of financial reporting processes, reduce earnings management practices, enhance compliance with International Financial Reporting Standards (IFRS), and improve the transparency, accuracy, and reliability of financial statements. Audit committees characterized by greater independence, financial expertise, frequent meetings, and active oversight are also anticipated to improve external audit quality, strengthen risk management, enhance corporate governance practices, and increase investor confidence. Furthermore, effective audit committee oversight is expected to reduce financial reporting irregularities, enhance corporate accountability, improve regulatory compliance, and strengthen stakeholder trust in published financial reports. Conversely, weak audit committee structures, inadequate financial expertise, limited independence, and ineffective oversight may increase the likelihood of financial misstatements, weak internal controls, and poor financial reporting quality. Consequently, effective audit committee performance is expected to contribute significantly to improving financial reporting quality, corporate transparency, investor confidence, and the long-term sustainability of listed companies in Nigeria. This study is expected to make significant theoretical and empirical contributions to the literature on accounting, auditing, corporate governance, and financial reporting by providing comprehensive evidence on the relationship between audit committee effectiveness and the financial reporting quality of listed companies in Nigeria. Unlike previous studies that examined isolated audit committee characteristics, this research provides a broader evaluation of audit committee effectiveness using multiple governance dimensions and comprehensive indicators of financial reporting quality within a longitudinal panel data framework. The findings will provide valuable insights for the Financial Reporting Council of Nigeria (FRCN), the Securities and Exchange Commission (SEC), the Nigerian Exchange Group (NGX), listed companies, audit committees, external auditors, investors, professional accounting bodies, policymakers, and academic researchers regarding the strategic importance of effective audit committee oversight in promoting transparent, reliable, and high-quality financial reporting. The study will also provide evidence-based recommendations for strengthening audit committee independence, enhancing financial expertise, improving corporate governance practices, reinforcing regulatory compliance, and fostering sustainable financial reporting practices within Nigeria's corporate sector.

Keywords: Audit committee effectiveness, financial reporting quality, listed companies, corporate governance, earnings quality, audit committee independence, International Financial Reporting Standards (IFRS), panel regression, Nigerian Exchange Group (NGX), Nigeria.